Carbureter for explosion-engines.



8 -PATENTED'FBB. 11', 1908. W. H. NEWBROUGH. OARBURETBB FOR EXPLOSION ENGINES.

881.108110]: nun 81:21.12. 1807.

imam

NITE STATES PATENT OFFICE.

WfIL'LplM n. NEWBROUGH, OF LANSING, MICHIGAN, ASSIGNOR TO THE NEW wantwmoiok 'QOMPANX, OF LANSI JNG,YMIOHIGAN.

CARBUBETEB FOB EXPLOSIQN-ENGINEBQ Specification of Letters Patent.

Patented Feb. 11, 1908 To all whom it may 1 Be ,itkn'own that I, WILLIAM New.

BROUGH, a citizen of theUnited- States, re-

. siding at Lansin Michigan, have invented Y .carburetersx provide an. mpg-loved carbureter for .explo 'ch is very simple in con-' certain. new an the following is as Oarburete'rs for Explosion-Engines, of-which cification. p This invention re ates to improvements Further objects, and objects relating to details of construction, will definitely appear inthe detailed description to follow.

jects of'my invention I accomplish. the. o by the devices and'means described in the following specification.

The invention is clearly defined and point- 7 edout in the claims.

A structure embodying the features of my invention is .clearly il ustrated in the accomanying drawing forming a part of this specication, in which:

Figure 1 is a detail elevationypartially in vertical section, of a structure embodying the features of my invention; Fig. 2 is a detail vertical section takenon a line correspending to line2- 2 of Fig. 1; and Fig. 3 is a vertical section 'taken'on a line corres 'onding to line 3-3 of Fig. 2, showing the etails" of the air valve.

Referring to the drawing: the carbureter chamber is preferablyin -the form of acylin j a stop;16. This stepis adjustably secured der, bein' adapted at its upper end .to be connects to an engine cylinder by means through the wall of the carbureter cham er;

- chamber.

inlet 3.

of a suitable pipe as 2. At the lower end of the carburetor. chamber is a The liquid fuel delivery pipe 4. is aliBJi ed in a horizontal position. This "pipe is provided with a delivery opening 5, the delivery openin 'being' directed upwardly and being central y. located, within the carbureter The fuel delivery pipeis prefer+ ably provided with a reducing-plug 6 at its outer end, the plugbeing of such size as to permit the delivery of the. desired quantity.

' kpplioationfiled September 12. 1907-5801411 Ho. seamuseful Improvements in;

suitable air.

' her and is connected to the delivery-pipe4 by means of asuitable valve casing as '8, a

ball check valve 9- beingi provided to revengto the sup y pi the return of the liqtui at t e The fuel is prefera ly maintains of the li uid fuel. -This lug is made of brass'bot proper level in the supply pipe by means of A a stor e or feed reservoiror pum or like. t is not an essential that t e liquid fuel be maintained at a certain fixed level, as it may be beloa the carbureter-irom'one to three feet and the carbureter willstill operate successfully. The check valve'and suction keep the gasolene up in the pipe when once it is started. Of course, t e

pump is used tokeep the gasolenesupplied to the carbureter; and to save p ping, etc., gasolene is kept fairly close to the check valve.

The valve casing 8 is preferably provided with a cap 10 as illustrated. The'carbureter chamber is preferably rovided withan enlargement 11 opposite t e fuel delivery pipe, so that the passage of air through the carbureter chamber is not restricted at this oint.-

At the lower end of the carbureter chamber-is a butterfly valve 12, adapted to control the air supply.- The stem 13 of this valve is arranged through the wall of thecarbureter and on its outer end is provided with a hand-piece 14. l v 1 'Pivotally mounted on the valve stem 13 is to the hand piece 14' by a set-screw 17 er ranged through the curved slot 15 formed therein. This stop is adapted to co-act with a the stop 18 rojeeting from the wall of the .carbureter 0 bar, in limiting the movement-of the ir inlet valve.

. The operation 0 the device is as follows:

In starting the e gine, the valve 12 is closed so that on the suction stroke of the-engine a quantity of theliquid fuel is drawn into the liquid "pipe and thence to the carburetor chamber. The air valve is then opened and stroke a sufficient uantity uce the 0'11 each char of p e is drawnup to pr desired mixture. This is controlled by the adjustment of the air valve, as itis obvious tha t the more the air inlet is restricted thegreater the suction on the fuel. The device may be nicely adjusted by loosening the screw 17 and the stop 16, thereby ermitting the valve12 to be brought to any esired position, thereby regulating the suction on the gasolene pi e; in this manner securing the desired exp osive mixture. After the valve is adjusted, the stop 16 is secured in place thereon by means of the set screw, so that in tended that in practice the restricting plug 6 shall be inserted at the factory and the passage therein be made of proper size to secure the desired results; thereby reducing the adjustable parts to a. minimum, so that the device may be operated by an inexperienced workman.

By means of the adjustment for the air valve, the carbureter may be adjusted to different quantities of fuel and the. varying working conditions.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1.. In a carbureter, the combination of a carbureter chamber having an air inlet at-its wardly. directed lower end and adapted to be connected at its up er end to an explosion engine cylinder; a el delivery pi e, provided with an upelivery opening; arran ed in a horizontal position, through the wal of said carbureter chamber, such delivery ipe having a reducing-plug at its outer end; a fuel suppl pipe arranged in a vertical position; a va ve casing connectin said fuel supply and delivery pipes; a ba licheck valve arrangedrin said valve casing; a butterfly valve arranged in said carbureter chamber below said fuel delivery ipe; a stem for said butterfly valve, arran ed through the Wall of said carbureter chain er; a hand-piece for said stem, having a curved slot therein; a stop pivotally mounted on said valve stem,

' a set screw carried by said stop, arranged through said slot in said hand-piece, whereby said stop may be secured in its adjusted position thereon; and a stop on said carbureter chamber, arranged to co-act with said adjust-- able stop of said hand-piece, all co-acting for the purpose s ecified.

2. In a car ureter, the combination of a carbureter chamber having an air inlet at its lower end and adapted to be connected atits upper end toan explosion engine cylinder; a fue delivery pipefiprovided with an upwardly directed delivery opening, arran ed in a horizontal position through the wal of said carbureter chamber; a fuel supply pipe arranged in a vertical position; a va ve casing connecting said fuel supply and delivery pi es; a ball check valve arranged in said va ve casing; a butterfly valve arranged n said carbureter chamber below said fuel delivery pipe; a stern for said butterfly valve, arran ed through the wall of said carbureter chamber; a hand-piece for said stem, having a curved slot therein; a stop pivotally mounted on said valve stem a set screw carried by said stop, arranged through said slot in said hand-piece, whereby said stop may be secured inits adjusted position thereon; and a stop on said carburetercha-mber, arranged to co-act with said adjustable sto of said hand-piece, all co-acting substantia ly as described and for the purpose specified.

3. Inacarbureter, the combination of acarbureter chamber having an air inlet at its 5 I lower end and adapted to be connected at its upper end to an explosion engine cylinder;

livery pipe; a stem for said butterfly valve,

arranged through the wall of said carbureter chamber; a hand-piece for said stem,.

- having a curved slot therein; a stop pivotally mounted on said valve stem; a set screw carried by said stop, arranged through said slot in said hand-piece, whereby said stop may be secured in. its adjusted position thereon; and a stop on said carbureter chamber, arranged to co-act with said adjustable stop of said handiece, all co-acting substantially as descri ed and for the purpose specified.

4. In a carbureter, the combination of a carbureter chamber having anair inlet at its lower end and adapted to be connected at its upipler end to an explosion' engine cylinder; a el delivery pipe, provided with an upwardly directed delivery 0 ening, arranged through the wall ofsaid carbureter chamber;

a butterfly valve arranged in said carbureter chamber below said fuel delivery pipe; a 115.

stem for said butterfly valve, arranged through the wall of said carbureter chamber; a hand-piece for said stem, having a curved slot therein 'a stop pivotally mounted on said valve stem; a set screw carriedby said stop, arranged through said slot in said handpiece, whereby said stop" may be secured in its adjusted position thereon; and a stop on said carbureter chamber, arranged to co-act with said adjustable stop of said hand-piece, all co-acting for thepurpose specified.

5. In a carbureter, the combination of a carbureter chamber having an air inlet at its lower end and adapted to be connected at its upper end toan explosion engine cylinder;

" said a fuel deliverypipe provided with .an upivardl'y directed delivery opening, 'arraxi'fedf in ahorizontal pofsition through the wa said "carbureter chamber, such delivery ipe having-a reducing-plug at its outer en fa pipe arranged in a vertical posive easing'eonnecting said fuel sup-\va ve casing a butterfly valve arranged in plyiand delivery. ipes a ball check valve arranged in said va ve casing a butterfly valve fuel supply a carbureter, the combination of .a

an air inlet at itseconnected, at its arranged in said carbureter chamber below pilpeg and an adjustable stop for'said valve, a co-aoting for the purvvithan upwardly directed delivery opening,-arranged in a horizontal position, through the wall of said carbu're't'er chamber; a fuel sup 'ly pipe arranged in a vertical osition; a. va ve casing connecting said fue supply and delivery pi es; aball check valve arranged in said 25 said carbureter chamber below said fuel idelivery ipe; and an adjustable stop for said valve or the purpose specified.

e Inwitness whereof, I have hereunto set my hand and seal in the presence of two-wit- 30 nes'ses.

WILLIAM H, NEWBROUGH. [1; s.]

Witnesses:

'E. W. GooDNow, S. B. SP'A'LDING. 

